"FOX B(Brown)" was a type of cotton produced by an American biologist Ms.Sally Fox to enable it to be spun by machine. She crossed Supima Cotton, Sea Island Cotton, and thick short brown cotton for the product.
According to her, the brown color comes from tannin. The raw cotton is resilient to pests. As a result, it grows sufficiently using only organic fertilizer.
"FOX B" is grown in organic farming and has world certification.
Cotton can be deemed organic cotton if it is grown adhering to a standard of pesticides and fertilizers use for more than 3 years.
The seeds aren't genetically modified, and use of defoliants and child labor is prohibited. The process is therefore environmentally and socially friendly.